Objective To investigate the correlation between serum 25-hydroxyvitamin D[25(OH)D]level and diabetic kidney disease(DKD)in patients with type 2 diabetes mellitus(T2DM).Methods A total of 174 T2DM patients admitted to Jiashan County Second People's Hospital from May 2019 to May 2021 were selected and divided into normal albuminuria(NUAlb)group(<30 mg/g,n=71),microalbuminuria(MUAlb)group(30～300 mg/g,n=85)and large albuminuria(LUAlb)group(≥300 mg/g,n=18)according to the urine albumin-creatinine ratio(UACR)level.The levels of 25(OH)D in each group and its relationship with UACR were analyzed.Results The age,DM duration,use of ACEI or ARBs,SBP,DBP,FPG,SUA,proportion of 25(OH)D<30 nmol/L and UACR in NUAlb,MUAlb,LUAlb graup increased in turn(P<0.05).Spearman correlation analysis showed that UACR in T2DM patients was positively correlated with gender,age,DM duration,BMI,SBP,DBP,FPG,HbA1c,TG,and SUA(P<0.05),and negatively correlated with HDL-C and 25(OH)D(P<0.05).Logistic regression analysis showed that gender,SBP,HbA1c,SUA,and 25(OH)D were influencing factors for albuminuria in T2DM patients.Conclusions T2DM patients have 25(OH)D shortage,especially in DKD patients.25(OH)D deficiency is closely related to proteinuria in T2DM patients.

ObjectiveTo observe the clinical efficacy of Qianghuo Shengshitang combined with ozone injection and radiofrequency thermocoagulation target puncture in the treatment of cervical spondylotic radiculopathy （wind-cold blockage type）. MethodSixty-eight patients with cervical spondylotic radiculopathy who were treated in Henan Province Hospital of Traditional Chinese Medicine from August 2020 to May 2021 were included and grouped into a control group and a research group by random number table， with 34 patients in each group. The control group was administrated with placebo granules of Qianghuo Shengshitang， and treated with ozone injection and radiofrequency thermocoagulation target puncture at the same time. The research group was given modified Qianghuo Shengshitang combined with ozone injection and radiofrequency thermocoagulation target puncture. Before and after treatment， patients in two groups were tested for the levels of tumor necrosis factor-α （TNF-α）， procalcitonin （PCT）， interleukin-2 （IL-2）， interleukin-1β （IL-1β）， 6-ketoprostaglandin E1α （6-keto-PGE1α）， plasma substance P （SP）， β-endorphin （β-EP）， lipid peroxide （LPO）， malondialdehyde （MDA）， and superoxide dismutase （SOD）. The pain visual scale （VAS）， cervical dysfunction index （NDI）， and clinical evaluation scale for cervical spondylosis （CASCS） were given to patients to evaluate the clinical efficacy. ResultCompared with those before treatment， the levels of IL-1β， PCT， and TNF-α in two groups were decreased， and the level of IL-2 was increased （P<0.05）. The improvement of IL-1β， PCT， TNF-α， and IL-2 was more obvious in the research group as compared with the control group （P<0.05）. After treatment， the levels of SOD in two groups were increased， while the levels of LPO and MDA were decreased （P<0.05）. After treatment， the improvement of SOD， LPO， and MDA was more obvious in the research group as compared with the control group （P<0.05）. Compared with those before treatment， the levels of SP and 6-keto-PGE1α in two groups were decreased after treatment， and the level of β-EP was increased （P<0.05）. The improvement of -keto-PGE1α and β-EP was more obvious in the research group as compared with the control group after treatment （P<0.05）. Compared with those before treatment， the VAS and NDI scores of the research group were decreased， and the CASCS scores were increased （P<0.05）. After treatment， the improvement of VAS， NDI， and CASCS of the research group was more obvious as compared with the control group （P<0.05）. After treatment， the total effective rate of patients in the research group was higher than that in the control group （Z=2.018， P<0.05）. ConclusionModified Qianghuo Shengshitang combined with ozone injection and radiofrequency thermocoagulation target puncture in the treatment of patients with cervical spondylotic radiculopathy （wind-cold blockage type） can inhibit inflammation， remove oxygen free radicals， improve the level of pain mediators， relieve pain， and improve cervical spine function and clinical efficacy.

Sit-stand movement is one of the most common movement behaviors of the human body. The knee joint is the main bearing joint of this movement. Thus, the dynamic analysis of knee joint during this movement has deeply positive influences. According to the principle of moment balance, the dynamics of the knee joint during the movement were analyzed. Furthermore, combined with the data obtained from optical motion capture and six-dimensional ground reaction force test, the curve of knee joint torque was calculated. To verify the accuracy of the analysis of dynamic, the human body model was established, the polynomial equations of angle and angular velocity were fitted according to the experimental data, and the knee joint simulation of the movement was carried out. The result revealed that in terms of range and trend, the theoretical data and simulation data were consistent. The relationship between knee joint torque and ground reaction force was revealed based on the variation law of knee joint torque. During the sit-stand movement, the knee joint torque and the ground reaction force were directly proportional to each other, and the ratio was 5 to 6. In the standing process, the acceleration first increased and then decreased and finally increased in reverse, and the maximum knee torque occurred at an angle of about 140°. In the sitting process, the torque was maximized in the initial stage. The results of the dynamics analysis of knee joint during sit-stand movement are beneficial to the optimal design and force feedback control of seated rehabilitation aids, and can provide theoretical guidance for knee rehabilitation training.
Humans ; Hip Joint ; Biomechanical Phenomena ; Movement ; Knee Joint ; Torque

Thimerosal has been widely used as a preservative in drug and vaccine products for decades.Due to the strong propensity to modify thiols in proteins,conformational changes could occur due to covalent bond formation between ethylmercury(a degradant of thimerosal)and thiols.Such a conformational change could lead to partial or even complete loss of desirable protein function.This study aims to investigate the effects of thimerosal on the capsid stability and antigenicity of recombinant human papillomavirus(HPV)18 virus-like particles(VLPs).Dramatic destabilization of the recombinant viral capsid upon thimerosal treatment was observed.Such a negative effect on the thermal stability of VLPs preserved with thimerosal was shown to be dependent on the thimerosal concentration.Two highly neutralizing antibodies,13H12 and 3C3,were found to be the most sensitive to thimerosal treatment.The kinetics of antigenicity loss,when monitored with 13H12 or 3C3 as probes,yielded two distinctly different sets of kinetic parameters,while the data from both monoclonal antibodies(mAbs)followed a biphasic expo-nential decay model.The potential effect of thimerosal on protein function,particularly for thiol-containing proteinaceous active components,needs to be comprehensively characterized during formulation development when a preservative is necessary.

Chronic hepatitis B (CHB) is often treated with drugs such as interferons and nucleoside (acid)/nucleotide (acid) analogs. While these drugs are effective in controlling the viral loads, they are not able to eliminate hepatitis B virus (HBV) from the body completely. Besides, side effects and drug resistance may by caused by the long-term use of these drugs. Several monoclonal antibodies (McAbs) against HBV, mostly against hepatitis B surface antigen (HBsAg), have been demonstrated with viral neutralization capability and with effective inhibition of HBV replication in relevant animal models. The use of a McAb individually or in combination with another therapy has the potentials to achieve functional cure of CHB. In this review, we summarized the encouraging results from the research and development of anti-HBV McAbs in clinical or pre-clinical development stage, aiming to provide new idea for the treatment of CHB.

Human coronavirus OC43 (HCoV-OC43) and severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) belong to the β-coronavirus genus. Since the discovery in 1967, HCoV-OC43 has been continuously circulating in human population and has become one of the common seasonal respiratory viruses. SARS-CoV-2, which has a higher morbidity and fatality rate, appeared at the end of 2019, followed by the emergence of a variety of variants, and the transmission and infection capacity of SARS-CoV-2 has been enhanced. HCoV-OC43 may be similar to SARS-CoV-2 in terms of genomic structure and function, species evolution, epidemic characteristics and clinical manifestations. In this review, the epidemiology, genomics, phylogenetic evolution and other aspects of HCoV-OC43 and SARS-CoV-2 were analyzed. Such an analysis would be helpful to understand the association and differences between the two viruses, and provide reference for understanding the potential threats of HCoV-OC43.

Zinc is one of the essential trace elements for human. It is essential for human health. In recent decades, the distribution and transport of zinc in human body have gradually become more evident. The immunomodulatory effects of zinc on the immune system have also been elucidated. Zinc is involved in regulating the cellular signaling pathways of immune cells and affecting the development of immune organs, the physiological state and function of immune cells and the secretion of cytokines. It is an indispensable element in the immune system and plays an important role in maintaining the integrity and stability of the immune system. This article briefly introduced the distribution and transportation of zinc in the human body, with the emphasis on the relationship between zinc and the development and function of immune cells.

Iron plays an important role in maintaining normal physiological functions of oxygen transportation and electron transfer in the body. However, excessive iron intake will induce the generation of oxygen radicals through Fenton reaction and result in free radical chain reactions, causing lipid peroxidation and DNA damage. Oxidative stress is also known as one of the causes of preeclampsia. Therefore, the correlation between iron overload and preeclampsia has attracted more attention. Relevant publications were reviewed to discuss the potential mechanisms of iron overload under oxidative stress in the pathogenesis of preeclampsia.

In order to develop agents with superior chemopreventive and chemotherapeutic properties against hepatocellular carcinomas, mitochondria-targeted hydroxycinnamic acids (MitoHCAs) were synthesized by conjugation with a triphenylphosphonium cation. These synthetic compounds were evaluated for their antioxidant activities in hepatic mitochondria, including against OHand ROOinduced lipid peroxidation. HOproduction was decreased significantly by increasing glutathione peroxidase and catalase activities. In addition, cell proliferation data from three cell lines (HepG2, L02 and WI38) indicated that the MitoHCAs were selective for cancer cells. Interestingly, the MitoHCAs both with or without Catriggered mitochondrial dysfunction by inducing mitochondrial swelling, collapsing the mitochondrial membrane potential and causing cytochromerelease. In particular, an inhibitor of the mitochondrial permeability transition pore (mPTP), cyclosporin A, attenuated mitochondrial damage and cell apoptosis, indicating that mPTP may be involved in the antiproliferative activity of MitoHCAs. Further studies focused on structural optimization of these compounds are onging.

John Cunningham virus(JCV)is a type of human polyomavirus. It was first isolated from the brain of a patient with progressive multifocal leukoencephalopathy(PML)in 1971 and named after that patient. The seroprevalence of JCV in the general population is 40% to 60% . The mortality rate among patients with AIDS complicated by PML was shown to be 50% . For immunocompromised patients and pa-tients with long-term use of immunosuppressive drugs,JCV would cause fatal polyomavirus associated ne-phropathy(PVAN),viremia and some other related diseases. While the pathogenesis of JCV has well stud-ied,there are no specific prevention and treatment measures for infected individuals. Therefore,reliable, specific and sensitive JCV detection methods in clinical settings are needed. This review describes the pros and cons of different methods for JCV detection with potentials for clinical applications.