bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photocatalytic efficiency of sol–gel synthesized Mn‐doped TiO2 nanoparticles for degradation of brilliant green dye and mixture of dyes
Authors: Bhosale Mangesh G. , Sutar Radhakrishna S. , Deshmukh Sandip B. , Patil Meghshyam K. 
Published: September 2022

AbstractThe Mn‐doped TiO2 nanoparticle photocatalysts have been prepared by a simple sol–gel method. 1, 3, and 5 mol% Mn‐doped TiO2 nanoparticles have been prepared by using a stoichiometric amount of manganese acetate and titanium isopropoxide as precursors of Mn and Ti respectively. The physico‐chemical characterization of the prepared samples has been studied by x‐ray diffraction (XRD), Brunauer–Emmett–Teller surface area analysis, field emission scanning electron microscope, energy dispersive x‐ray analysis, high‐resolution transmission electron microscopy, x‐ray photoelectron spectroscopy, Ultraviolet–visible spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). XRD study reveals the formation of pure anatase phase of TiO2 and decrease in crystalline size of TiO2 on increasing the Mn doping content. TGA reveals minimum weight loss in the high‐temperature region of 500–1,000°C, showing the thermal stability of the catalyst. FTIR study shows highly bonding in metal atoms. These samples have been tested for photocatalytic degradation of brilliant green dye. 5 mol% Mn‐doped TiO2 is having nearly four times more photocatalytic activity than pure TiO2. In addition, Mn‐doped TiO2 has shown excellent photodegradation of a mixture of three dyes namely, rhodamine B, brilliant green, and methylene blue.
Serum VCAM‐1 and ICAM‐1 measurement assists for MACE risk estimation in ST‐segment elevation myocardial infarction patients
Authors: Yu Jiancai , Liu Yongxing , Peng Wanzhong , Xu Zesheng 
Published: September 2022

AbstractBackgroundVascular cell adhesion molecule‐1 (VCAM‐1) and intercellular adhesion molecule‐1 (ICAM‐1) modulate atherosclerosis by promoting leukocyte infiltration, neutrophil recruitment, endothelial cell proliferation, etc., which may directly or indirectly facilitate the occurrence of major adverse cardiac events (MACE). This study intended to investigate the value of VCAM‐1 and ICAM‐1 for predicting MACE in ST‐segment elevation myocardial infarction (STEMI) patients.MethodsTotally, 373 STEMI patients receiving the percutaneous coronary intervention and 50 health controls (HCs) were included. Serum VCAM‐1 and ICAM‐1 were detected by ELISA. Meanwhile, MACE was recorded during a median follow‐up of 18 (range: 1–46) months in STEMI patients.ResultsVascular cell adhesion molecule‐1 and ICAM‐1 were raised in STEMI patients compared with HCs (both p < 0.001). VCAM‐1 (p = 0.002) and ICAM‐1 (p = 0.012) high were linked with raised accumulating MACE rate in STEMI patients. Notably, VCAM‐1 high (hazard ratio [HR] = 2.339, p = 0.031), age ≥ 65 years (HR = 2.019, p = 0.039), history of diabetes mellitus (DM) (HR = 2.395, p = 0.011), C‐reactive protein (CRP) ≥ 5 mg/L (HR = 2.550, p = 0.012), multivessel disease (HR = 2.561, p = 0.007) independently predicted MACE risk in STEMI patients. Furthermore, a nomogram‐based prediction model combining these factors was established, exhibiting an acceptable value for estimating 1, 2, and 3‐year MACE risk, with AUC of 0.764, 0.716, and 0.778, respectively, in STEMI patients.ConclusionThis study confirms the value of VCAM‐1 and ICAM‐1 measurement in predicting MACE risk in STEMI patients. Moreover, VCAM‐1 plus other traditional prognostic factors (such as age, history of DM, CRP, and multivessel disease) cloud further improve the predictive accuracy of MACE risk in STEMI patients.
Impact of ixazomib‐lenalidomide‐dexamethasone therapy on overall survival in multiple myeloma patients: Analysis of the emerging‐markets subgroup of the TOURMALINE‐MM1 trial
Authors: Spencer Andrew , Samoilova Olga , Chng Wee‐Joo , Labotka Richard , Li Cong , Wu Kwang‐Wei , Saxena Nakul , Yan Xu , Lee Jae Hoon , Beksac Meral 
Published: September 2022

AbstractIxazomib‐lenalidomide‐dexamethasone (ixazomib‐Rd) showed clinical efficacy over placebo‐Rd in patients with relapsed/refractory multiple myeloma (MM) in the TOURMALINE‐MM1 trial. Over a median follow‐up of ∼85 months, as patients showed disease progression, they received subsequent novel therapies that confounded the overall survival (OS) benefit. Here, we conducted a post hoc analysis in 148 patients from seven countries defined as emerging markets, with limited access to novel therapies for MM during the trial period, to describe the impact of these therapies on OS. Patients were randomised to ixazomib‐Rd (n = 71) or placebo‐Rd (n = 77). The median progression‐free survival (PFS) was 18.7 versus 10.2 months, with ixazomib‐Rd versus placebo‐Rd (hazard ratio [HR], 0.504; p = 0.008) demonstrating a statistically significant improvement as observed in the primary trial. The median OS improved by 32.6 months with ixazomib‐Rd over placebo‐Rd (63.5 vs. 30.9 months; HR, 0.794; p = 0.261); however, the statistically significant benefit seen in PFS was not observed for OS. Improvement with ixazomib‐Rd over placebo‐Rd was observed in overall response (81.7% vs. 64.9%; odds ratio [OR], 2.38; p = 0.019) and complete response (22.5% vs. 3.9%; OR, 7.57; p < 0.001). Patient‐reported quality of life and use of subsequent therapies were similar across treatment groups. No new safety concerns were identified. Compared with the main cohort, median OS was 10 months longer with ixazomib‐Rd and 21 months shorter with placebo‐Rd in this subgroup, indicating a clinically meaningful survival benefit of ixazomib‐Rd treatment in this patient population with limited access to subsequent novel therapies.
Streptococcal toxic shock syndromeによる敗血症性ショックで徐脈性不整脈を合併し一時ペーシングを要した1例(A case of septic shock with bradycardic arrhythmias requiring temporary pacing due to streptococcal toxic shock syndrome)
Authors: 卓也 岸田 , 憲市 新田 , 貴大 丸山 , 広登 坂本 , 勇一郎 嘉嶋 , 勝徳 望月 , 浩 今村 
Published: September 2022

要旨敗血症性心筋症（SICM）は，敗血症に合併する可逆的な心筋障害であり，左室収縮率低下，左室拡張，輸液負荷にも反応しないショックを呈する。症例は，52歳の男性で未治療のう歯による副鼻腔炎の既往あり。主訴は，発熱，倦怠感で前医を受診した。敗血症性ショック，心機能低下で当院へ転送された。輸液療法，薬物療法するも循環動態を維持できず，さらに徐脈性不整脈が出現し，一時ペーシング，V–A ECMO，IABPの機械的補助を開始した。第2病日には比較的速やかに改善し，薬物，一時ペーシングや機械的補助は離脱できた。血液培養にて溶連菌感染であることが判明し，STSSとして治療を行った。第3病日，経鼻的排膿ドレナージ，第10病日，抜歯，右上顎洞洗浄施行し，第25病日に独歩で退院となった。敗血症性ショックにおいても，徐脈性不整脈を合併し，一時ペーシングを必要とすることがある。
クリオプレシピテートを用いて出血性ショックを離脱できた小児頭部外傷の1例(Pediatric head trauma presented with hemorrhagic shock and treated by cryoprecipitate: a case study)
Authors: 希梨 福水 , 耕太 堀 , 英里奈 原口 , 恵子 寺住 , 和之 林田 , 克己 奥本 
Published: September 2022

要旨症例は5歳の男児。自動車乗車中の事故で受傷した。外傷性脳損傷に加え頭皮剥離創からの出血により，ショックバイタルかつ凝固障害を来しており，創部止血に加えクリオプレシピテートを含む大量輸血プロトコルを発動して蘇生した。外傷性凝固障害のある大量出血患者に対してクリオプレシピテートを投与することは推奨されているが，本邦の小児外傷患者に対してクリオプレシピテートを投与した報告は少ない。また，本邦の小児外傷患者に対して大量輸血プロトコルを発動した報告も少ない。本症例は，小児外傷患者に対しクリオプレシピテートを含む大量輸血プロトコルを発動し出血性ショックによる代謝性アシドーシスと凝固障害を是正することができたので報告する。
上腕動脈からREBOAを留置して救命した大動脈緊急症の2治療例(Two cases of aortic emergencies treated by placement of a resuscitative endovascular balloon occlusion of the aorta through the left brachial artery)
Authors: 裕樹 松永 , 淑寛 大倉 , 和宏 杉山 , 幹太 北川 , 潤 山川 , 学 三上 , 祐一 濱邊 
Published: September 2022

要旨Resuscitative endovascular balloon occlusion of the aorta（REBOA）は，出血性ショックの一時的血流制御のため，とくに外傷で用いられる。迅速性より大腿動脈アクセスが多いが，上腕動脈アクセスも可能である。当院は初療室に自走式CTと透視装置を備えるhybrid emergency roomを有する。大動脈緊急症に対し，上腕動脈からREBOAを留置しステントグラフトで救命した2例を経験した。症例1：70代男性。ワゴン車乗車中の事故で，ショック状態で搬送された。CTで腹部大動脈損傷があり，REBOAを右大腿動脈からzone 3に留置し初期蘇生を行った。コイル塞栓時の干渉を防ぐため，またステントグラフト手技中の循環安定のため，REBOAを左上腕動脈から入れ替えた。ステントグラフトで止血を得た。迅速な血流制御後，安全な根治術のため，アクセス変更は有用である。症例2：60代男性。外出中の背部痛で，ショック状態で搬送された。CTで腹部大動脈瘤破裂がみられた。右大腿動脈からではガイドワイヤーが瘤を越えず，左上腕動脈からREBOAをzone 1に留置しステントグラフトで止血を得た。動脈や病変部の形状により，大腿動脈アクセスが難しい場合，上腕動脈アクセスは有用である。症例に応じたREBOAのアクセスサイトの変更は，有効な戦略の一つである。
肋骨骨折観血的手術を行ったフレイルチェスト症例における呼吸理学療法の経験(The experience of respiratory physical therapy to operative treatment of rib fractures in flail chest injuries)
Authors: 真介 肥後 , 英之 太田 , 愛 酒井 , 愛 柳内 , 喜己 北川 
Published: September 2022

要旨　多発肋骨骨折を伴うフレイルチェストに対し，骨接合術を施行された患者の呼吸理学療法を3症例経験した。陽圧内固定による治療では高い確率で肺炎などの合併症を引き起こしたが，観血的内固定術後は体位ドレナージなど肺理学療法の制限が少ないため，合併症なくいずれも良好に経過した。理学療法プログラムも円滑に行われ，速やかな機能改善と社会復帰が可能であった。理学療法士は呼吸運動を評価し，異常な胸郭運動などの所見があった場合，速やかに情報共有を行う必要がある。運動療法中も胸郭運動を評価し，呼吸仕事量に着目した呼吸デバイスを選択，調整することで治療効果をより高めることができる。また，治療経過中に起こった胸郭動揺増悪の有無に着目することは，保存的治療の人工呼吸器離脱可否の判断と骨接合術の適応を検討するための一助となりうる。
重症COVID–19肺炎の急性期の循環動態は比較的安定している～単施設・症例対照研究～(Critically ill patients with novel coronavirus infectious disease (COVID–19) are relatively hemodynamically stable in the acute phase: a single–centered, retrospective, observational study)
Authors: 有未 船登 , 航 松田 , 樹 植村 , 憲太郎 小林 , 亮 佐々木 , 竜哉 岡本 , 昭夫 木村 
Published: September 2022

要旨【目的】人工呼吸器管理を要する重症COVID–19肺炎の臨床経過について，COVID–19出現以前の重症肺炎患者と比較を行うことで，その特徴を循環動態を中心に検討した。【対象】2020年2～5月に人工呼吸器管理を行ったCOVID–19肺炎患者（以下，COVID群）と，2017年1月～2018年12月に救命ICUにて救急科で人工呼吸器管理を行った肺炎患者（以下，非COVID群）を対象とし，患者背景および挿管日をDay 0としたDay 0，1，3のSOFAスコアの推移を調査した。【結果】対象はCOVID群14名，非COVID群14名。平均年齢は68.3歳で両群の既往歴・院内死亡率に差はなかった。挿管日のSOFAスコアの各項目の平均は，呼吸3.0 vs 3.1，凝固0.5 vs 0.6，肝臓0.3 vs 0.6，循環0.1 vs 2.8，中枢神経0.8 vs 1.6，腎臓0.4 vs 1.3（以上，COVID群vs非COVID群）で，循環（p<0.01）・中枢神経（p=0.049）で有意差を認めた。Day 1，3においても循環のSOFAスコアはCOVID群で有意に低く推移した。また，昇圧剤の使用率，挿管日の補液量は，いずれもCOVID群で有意に低かった。【結語】重症COVID–19肺炎では非COVID重症肺炎と比較して循環動態はより安定していることが示唆された。
Transcranial ultrasound simulations: A review
Authors: Angla Célestine , Larrat Benoit , Gennisson Jean‐Luc , Chatillon Sylvain 
Published: September 2022

AbstractTranscranial ultrasound is more and more used for therapy and imaging of the brain. However, the skull is a highly attenuating and aberrating medium, with different structures and acoustic properties among samples and even within a sample. Thus, case‐specific simulations are needed to perform transcranial focused ultrasound interventions safely. In this article, we provide a review of the different methods used to model the skull and to simulate ultrasound propagation through it.
Multifunctional laser‐induced nanostructuring of glass
Authors: Skoulas Evangelos , Mimidis Alexandros , Papadopoulos Antonis , Lemonis Andreas , Stratakis Emmanuel 
Published: September 2022

AbstractA comprehensive report is provided here on a single‐step approach to the selective surface processing and functionalization of glass components with laser pulses. In particular, it is shown that biomimetic, self‐organized, deep‐subwave‐length, quasi‐periodic nanopillar structures can be realized using ultrashort laser light. These structures have an enormous effect on the properties of the glass, including optical and wetting. Remarkable antireflection and enhanced transmission, tunable glare as well as a strong antifogging effect of the laser processed glass are shown. Several use cases are discussed for selective glass surface functionalization, including optical fiber tips and curved optical lenses.
Photonic devices for future network designs
Authors: Petrillo Alan 
Published: September 2022

AbstractOptical fiber networks, which make up the backbone of the internet, rely on many electrical signal processing devices. Nanoscale silicon photonic network components, such as phase shifters, could boost optical network speed, capacity, and reliability. To design these small but powerful devices, a team at the Swiss Federal Institute of Technology Lausanne uses simulation to optimize both optical and electromechanical performance.
Gefilmte Proteindynamik
Authors: Schmidt Marius 
Published: September 2022

ZusammenfassungKristallographie ist eine Ensemblemethode, die alle Moleküle in einem Kristall gleichzeitig erfasst. Das Verhalten der Einzelmoleküle kann damit allein dann untersucht werden, wenn sich alle Moleküle im Kristallensemble synchron bewegen. Dies ist nur auf ultrakurzen Zeitskalen möglich, auf denen das Ensemble nicht kinetisch auseinanderlaufen kann. Auf längeren Zeitskalen müssen die zeitaufgelösten Röntgendaten mit chemischer Kinetik interpretiert werden. Die Kinetik beschreibt die Dynamik des Ensembles, hier des Kristalls. Ein molekularer Film bildet dann nur die Änderung der Besetzungswahrscheinlichkeiten in den intermediären Zuständen ab. Eine vollständige, strukturelle Beschreibung aller Übergänge während einer Reaktion in einem Proteinensemble ist eine der großen Herausforderungen in der Molekülphysik.
Observer‐based event and self‐triggered adaptive output feedback control of robotic manipulators
Authors: Gao Jie , He Wei , Qiao Hong 
Published: September 2022

AbstractThis article investigates the event and self‐triggered adaptive output feedback control of a manipulator suffering from limited knowledge of states and dynamics, to realize the trajectory tracking with less communication occupation. In this control scheme, the configuration of co‐located observer and controller with discontinued output feedback is considered. To guarantee the convergence of observation and control errors with few events as much as possible, an adaptive event‐triggered mechanism based on model estimation is constructed to compensate for the error accumulation produced by the intermittent open‐loop. Based on the model state, adaptive backstepping method with network estimation is used for deriving the controller, to solve the control stability under uncertainty of system dynamics. Aiming at removing the “derivative explosion and singularity” of discontinuous virtual signal, a first‐order filter is incorporated to get the smooth approximation of the virtual signal, and an additional self‐adaption signal is designed for the filtering error compensation. In view of the state updating at event instants, a gradual updating method is designed such that the state jumping‐induced chattering instability could be handled. With the above designed method, a dead‐zone event‐triggered condition with the relative threshold and variable tolerance boundary is built to avoid Zeno‐behavior. Furthermore, an easy‐implemented self‐triggered mechanism is also constructed. Finally, the Lyapunov function is utilized to derive the setting principle for the stability of the system, and the simulation is given to show the validity of the proposed control method.
Distributed adaptive event‐triggered containment control for multi‐agent systems under a funnel function
Authors: Li Zan , Xue Hong , Pan Yingnan , Liang Hongjing 
Published: September 2022

AbstractIn this article, the adaptive event‐triggered containment control problem is investigated for a class of uncertain nonlinear multi‐agent systems with an adjustable funnel function. To address the high‐frequency oscillations or overshooting problem of fast learning, a predictor is considered. Different from the existing event‐triggered control results, a novel adaptive event‐triggered condition is designed, which depends on the prediction error instead of relative state error. In order to further improve both the transient and steady‐state performance, a modified funnel control strategy is introduced, and distributed containment errors are converged to an adjustable funnel boundary. The proposed control scheme guarantees that the closed‐loop system is stable and all followers converge to the convex hull constructed by the leaders. Finally, two simulation examples are provided to confirm the effectiveness of the proposed control method.
Spontaneous Decarboxylation of Ferrocenecarboxylate using 1,4‐Benzoquinone as Oxidant: Application to the Chemical Grafting of Glassy Carbon Surfaces
Authors: Ramírez‐Chan Daniel E. , Palacios‐Ramírez Jesús I. , Fragoso‐Soriano Rogelio , González Felipe J. 
Published: September 2022

AbstractThe covalent modification of glassy carbon electrode with ferrocenyl moieties was performed in acetonitrile using a mixture of ferrocenecarboxylate (FcCOO−) and ferrocenecarboxylic acid (FcCOOH). This process is activated by 1,4‐benzoquinone (Q), which plays the role of oxidant. The carboxylate induces the redox reduction of the quinone whereas an excess of the carboxylic acid drives the protonation of the reduced quinone to yield hydroquinone (QH2) as a reaction product. Due to the homogeneous oxidation of the carboxylate derivative, carbon dioxide and ferrocenyl radicals (Fc⋅) are released, such as occurs in the classical Kolbe reaction. The generation of ferrocenyl radicals allows the chemical derivatization of non‐connected glassy carbon surfaces. The homogeneous redox reaction between the 1,4‐benzoquinone and ferrocenecarboxylate proceeded slowly and permitted the covalent attachment of a thin film with ferrocenyl moieties, whose presence on the carbon surface was evidenced from cyclic voltammetry and atomic force microscopy (AFM) measurements.
Microwave‐Assisted Synthesis of Cobalt‐Doped Rutile/Ilmenite Derived from Natural Sands as Visible‐Light‐Active Photocatalytic and Antimicrobial Agents
Authors: Disanayake Prasad , Madhusha Chamalki , Munaweera Imalka , Wijesinghe Gayan , Weerasekera Manjula , Deraniyagala Samitha , Kottegoda Nilwala 
Published: September 2022

AbstractMetal doped TiO2 has received increased scientific attention as visible‐light active photocatalytic materials. In this study, a novel, greener, microwave assisted synthetic route was employed to synthesize cobalt doped ilmenite (FeTiO3) /rutile (TiO2) without the need for isolation of TiO2 from natural sand. The successful doping of cobalt into ilmenite/rutile matrix was confirmed by shifts observed in basal peaks of ilmenite/rutile based on PXRD and significant changes in intensity and peak positions of core‐shell bands based on XPS. Band gap values observed for cobalt doped rutile and ilmenite were 3.57 and 2.74, respectively. Aforesaid observations were further corroborated by the enhanced photocatalytic behavior exhibited by cobalt doped ilmenite/rutile under visible light. Furthermore, cobalt doped ilmenite/rutile demonstrated antimicrobial activity against wound pathogens;P. aeruginosa, S. aureus and MRSA.
A Type I Pullulanase from Geobacillus subterraneus: Functional Expression in Escherichia coli, Enzyme Characterization, Truncation, and Application
Authors: Chen Mianhui , Zhang Jin , Wang Jingjing , Lin Lin , Wei Wei , Shen Yaling , Wei Dongzhi 
Published: September 2022

AbstractThis study clones a pullulanase gene (pul13552), encoding a thermostable type I pullulanase, from a Geobacillus subterraneus strain KCTC 3922 and the characteristics are probed. The gene encodes a 722 amino acid pullulanase with an open reading frame of 2169 bp. T
The purified recombinant Pul13552 hydrolyzes the α‐1,6 linkages specifically in pullulan to release maltotriose as the major product. Specific activity is detected to be 64.75 U mg−1 and the Km and Vmax values of purified Pul13552 are 4.37 mg mL−1 and 0.096 g (L min)−1, respectively. The optimal activity of purified Pul13552 is exhibited at pH 6.0 and 60 °C, and the immobilized Pul13552 shows several different characteristics from the mobilized one. Substrates screening shows that Pul13552 hydrolyzes pullulan, amylopectin, and soluble starch, but not amylose. Substrate preference and product analysis indicate that the pullulanase from G. subterraneus strain KCTC 3922 is the type I pullulanase. Subsequently, the N‐terminal of the Pul13552 is truncated and the Pul13552T shows different substrates specificity and stability. Furthermore, the saccharification maize starch is employed as the substrate to produce maltotriose by the Pul13552 and the yield reaches 8.5 g L−1. Generally, the study identifies an unreported pullulanase with appropriate thermostability and optimum pH, and the truncated Pul13552, Pul13552T, demonstrates the N‐terminal of the Pul13552 is important for substrates recognition.
Influence of Sugar Modifications on the Nucleoside Conformation and Oligonucleotide Stability: A Critical Review
Authors: Das Gourav , Harikrishna S. , Gore Kiran R. 
Published: September 2022

AbstractRibofuranose sugar conformation plays an important role in the structure and dynamics of functional nucleic acids such as siRNAs, AONs, aptamers, miRNAs, etc. To improve their therapeutic potential, several chemical modifications have been introduced into the sugar moiety over the years. The stability of the oligonucleotide duplexes as well as the formation of stable and functional protein‐oligonucleotide complexes are dictated by the conformation and dynamics of the sugar moiety. In this review, we systematically categorise various ribofuranose sugar modifications employed in DNAs and RNAs so far. We discuss different stereoelectronic effects imparted by different substituents on the sugar ring and how these effects control sugar puckering. Using this data, it would be possible to predict the precise use of chemical modifications and design novel sugar‐modified nucleosides for therapeutic oligonucleotides that can improve their physicochemical properties.
First detection and complete genome analysis of porcine circovirus‐like virus P1 and porcine circovirus‐2 in yak in China
Authors: Zhu Jiaping , Xiao Qi , Wen Libin , Yin Lihong , Zhang Fengxi , Li Tianjiao , Banma Zelang , He Kongwang , Suolang Sizhu 
Published: September 2022

AbstractPorcine circovirus‐like virus P1, like porcine circovirus type 2 (PCV2), is a potential pathogen of post‐weaning multisystemic wasting syndrome in swine. Yaks are a valuable species and an iconic symbol of the Tibet Plateau which is the highest and largest plateau in the world. In this study, a total of 105 yak diarrheal samples, collected from 13 farms in Linzhi in the Tibet Plateau from January 2019 to December 2021, that were screened for P1 and PCV2 by polymerase chain reaction, 10.48% (n = 11) were positive for P1, 4.76% (n = 5) for PCV2, and 5.71% (n = 6) were positive for coinfection of P1 and PCV2. In addition, the whole genomes of eight P1 strains and eight PCV2 strains were sequenced. Alignment of deduced amino acid sequences of P1 ORF1 and PCV2 ORF2 gene revealed that ON012566 had one unique amino acid mutation at residues 137 (T to P). This mutation has important implication for the study of virus virulence, tissue tropism, and immune response. Phylogenetic analysis shows that the yak‐origin P1 strains in this study with cattle‐origin P1 reference strains were grouped into one cluster. The yak‐origin PCV2 (ON012566) and a buffalo‐origin PCV2 (KM116514) reference strain clustered in the same branch in the PCV2b regions. Meanwhile, the remaining PCV2 strains and buffalo‐origin PCV2 reference strain (ON012565) clustered in the PCV2d regions. To summarize, to our knowledge, this is the first report on the molecular prevalence and genome characteristics of P1 and PCV2 in yaks in the world and will contribute to further study of the molecular epidemiology, source, and evolution of P1 and PCV2 strains.