The common marmoset (Callithrix jacchus) is a species of the genus Callithrix in the primate family Callitrichidae. Common marmosets are an important scientific research resource for the study of neuroscience, medicine, and pharmacy. The feeding and breeding of common marmosets provide important support for scientific research. At present, common marmoset resources in China are at a critical stage of development. This paper takes the Center for Excellence in Brain Science and Intelligence Technology of the Chinese Academy of Sciences (hereafter referred to as CEBSIT) as an example to discuss the experience of common marmoset feeding, breeding and genetic management. In terms of breeding environment and facilities, on the basis of the national standard, more stringent environmental parameter standards are implemented for environmental temperature, relative humidity, the number of air exchanges, and the average concentration of sedimentation bacteria. Two kinds of cages for common marmoset breeding and experimentation are designed. According to the differences in facility conditions and staffing, a cleaning and maintenance method combining "dry rearing" and "wet rearing" is introduced. In terms of feeding management, in order to meet the high nutritional needs of common marmosets, CEBSIT prepares special formulated diets, and introduces the transition method of common marmosets from diets mixed with formulated rations and pellets to exclusive commercial diets, and strictly regulates the operation procedures of formulated diets for common marmosets, and has accumulated a series of methods for preventing nutritional and metabolic diseases in common marmosets. In terms of animal health management, the health of common marmosets is ensured through measures such as regular quarantine, isolation and treatment, and epidemic prevention, and the health inspection process of common marmosets is described in detail, and hierarchical and classified management is carried out according to the physical condition of common marmosets. This paper also briefly describes the treatment of diarrhea and pneumonia that are common in common marmosets. In terms of breeding management, it covers the selection of breeding common marmosets, combining pairs of common marmosets into the same cage for breeding, group splitting and hand-rearing of infant common marmosets, and introduces the method of reintroducing hand-reared infant common marmosets to parental care from the perspective of animal welfare. In terms of genetic management, the common marmoset population in CEBSIT is maintained as a closed colony and follows a non-inbreeding method. CEBSIT has developed an inbreeding screening system to check pedigree information before pairing to avoid inbreeding. Under conditions without introducing new individuals from outside, CEBSIT has continuously bred the colony for 5 generations while maintaining genetic heterozygosity. This paper only discusses the feeding, breeding and genetic management of the common marmoset and aims to provide a useful reference for other institutions engaged in common marmoset breeding.

The common marmoset (Callithrix jacchus), a primate species belonging to the genus Callithrix in the family Callitrichidae, has multiple advantages including small body size, short reproductive cycle, early sexual maturity, 1-3 offspring per litter, and ease of experimental manipulation. It also exhibits behavioral characteristics such as vocal communication and strict monogamy. Common marmosets present unique advantages in neuroscience and brain disease research and are widely used in biomedical fields including neuroscience, gene editing, and ethology. Experimental common marmosets (hereinafter referred to as "experimental marmosets") require management of breeding and use to ensure traceable pedigrees and prevention of inbreeding. Existing management systems developed for rodents or Macaca often cannot effectively meet the practical needs of experimental marmoset management in key aspects such as pedigree tracking and inbreeding warning. To address this issue, the Laboratory Animal Center of the Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences (hereinafter referred to as "the Center") designed and developed a second-generation information management system for marmosets in 2021 based on its first-generation information management system, and the second-generation system was launched in 2023. This second-generation system adopts a B/S architecture, is modular, and features front-end and back-end separation. It uses mainstream technical frameworks, including Spring Boot, MySQL, and Redis, and integrates 16 functional modules such as basic information, pedigree tree, breeding and experimental selection database, microchip identification management, and ethical supervision. Compared with the first-generation system, the second-generation system optimizes the pedigree tree and basic information modules. It also adds new functions, including purpose-based database partitioning, animal status tracking, abnormal alerts, automatic microchip identification task generation, inbreeding warning, ethical document upload and review, and record management. Together, these form a systematic and refined management and service system covering the entire breeding and experimental use of experimental marmosets. From 2023 to 2025, the practical application at the center shows that it has significantly improved the management efficiency and service level of the experimental marmoset management unit, and can provide a reference for the development of information management systems in other institutions using marmosets.

Recently, photodynamic therapy (PDT) has gained considerable attention as a promising therapeutic approach for the treatment of psoriasis. Unfortunately, the activation of high mobility group box 1 protein (HMGB1) by PDT triggers innate and adaptive immune responses, which exacerbate skin inflammation. Herein, we combined glycyrrhizic acid (GA), a natural anti-inflammatory compound and immunomodulator derived from the herb Glycyrrhiza uralensis Fisch., with PDT actuated by the photosensitizer chlorin e6 (Ce6) by co-loading them in GA-based lipid nanoparticles coated with a catechol-modified quaternary chitosan salt (GC NPs/QCS-C). GC NPs/QCS-C exhibited high drug loading efficacy, uniform size distribution, an ideal topical adhesive property, enhanced skin retention and penetration in psoriasis-like lesions, and high intracellular uptake in epidermal cells compared with the counterparts. Subsequently, the transdermal administration of GC NPs/QCS-C followed by near-infrared laser radiation in an imiquimod-induced psoriasis-like mouse model significantly ameliorated psoriasis symptoms, promoted the apoptosis of hyperproliferative epidermal cells, and alleviated the inflammatory cascade. The significant therapeutic outcomes of GC NPs/QCS-C were attributed to the synergistic effects of GA and PDT on modulating immune cell recruitment and inhibiting dendritic cell maturation. Our results demonstrated that the topical bio-adhesive nanosystem that combines GA and Ce6 offers a synergistic chemo-phototherapeutic strategy for psoriasis treatment.

To establish an immunochromatographic method for rapid detection of caprine enterovir-us(CEV),the monoclonal antibody against CEV VP1 protein was used as gold-labeled monoclonal antibodies,and the purified rabbit-derived polyclonal antibody of CEV-VP1 and sheep anti-mouse IgG were used as the detection line and quality control line,respectively.The colloidal gold immu-nochromatographic test strips for CEV were prepared according to the principle of double antibody sandwich,evaluated,and applied for clinical specimen detection.The results showed that the meth-od specifically recognized CEV without cross-reaction with bovine enterovirus and bovine viral di-arrhea virus.The minimum detection limit of the method was 102.49 TCID50/mL and had good re-producibility.The prepared test strips had a shelf life of three months kept at 4 ℃.Detection of clin-ical samples using the immunochromatographic test strips showed 100％coincidence rate with RT-PCR method.In conclusion,the colloidal gold immunochromatographic test strips for detection of the emerging CEV with good specificity,sensitivity and repeatability,which provides a new techni-cal means easily used for the rapid detection/diagnosis and epidemiological investigation on CEV infection.

Objective:To explore the effect of dural puncture epidural (DPE) combined with dual tube epidural block in labor analgesia of hypertensive women with pregnancy and its impact on fetal umbilical arteriovenous blood gas.Methods:A total of 120 pregnant women with gestational hypertension who underwent vaginal delivery from February to August 2023 in the Affiliated Hospital of Jining Medical College were prospectively selected and divided into two groups by random number table method, with 60 cases in each group. The observation group was given DPE combined with double epidural block for analgesia, and the control group was given double epidural block for analgesia. Blood pressure level, Digital Pain Rating Scale (NRS) score, analgesia quality and efficiency, anesthesia level, adverse reactions and fetal umbilical arteriovenous blood gas analysis were compared between the two groups before and after injection.Results:The systolic blood pressure and diastolic blood pressure in the two groups were significantly decreased at 15 min, 30 min, 1 h and 2 h after injection, and the systolic blood pressure and diastolic blood pressure in the observation group were lower than those in the control group at the above time points, there were statistical differences ( P<0.05). The NRS scores at 30 min, 1 h and 2 h after injection in the observation group were lower than those in the control group: (3.30 ± 0.25) scores vs. (4.91 ± 0.28) scores, (2.18 ± 0.37) scores vs. (3.25 ± 0.43) scores, (1.76 ± 0.21) scores vs. (2.44 ± 0.22) scores, there were statistical differences ( P<0.05). The time required for T 10 to reach the anesthetic plane in the observation group was shorter than that in the control group: (9.10 ± 1.35) min vs. (13.25 ± 1.64) min, there was statistical difference ( P<0.05). The dosage of analgesic drugs (sufentanil), the proportion of the highest sensory anesthesia plane to T 6, and the proportion of the lowest sensory anesthesia plane to S 4 between the two groups had no statistical differences ( P>0.05). The onset time of analgesia in the observation group was shorter than that in the control group: (12.34 ± 3.45) min vs. (17.13 ± 3.57) min, and the number of relief analgesia was lower than that in the control group: (1.74 ± 0.32) times vs. (2.09 ± 0.45) times, there were statistical differences ( P<0.05). The incidence of adverse reactions between the two groups had no statistical differences ( P>0.05). The pH value, partial pressure of arterial oxygen, partial pressure of arterial carbon dioxide and residual alkali between the two groups had no statistical differences ( P>0.05). Conclusions:DPE combined with double tube epidural block has a significant effect on labor analgesia in pregnant women with hypertension, which can effectively improve the efficiency and quality of analgesia, relieve maternal pain. In addition, the combined therapy has little impact on the stablity of blood pressure, and fetal umbilical arteriovenous blood gas, which hardly generate adverse events and deserved for clinical promotion.

This study collected data on 9 cases of fatal head injuries caused by adjustable wrenches and analyzed 16 types of injury characteristics of head injuries caused by adjustable wrenches.The distinctive patterns of head injuries caused by adjustable wrenches were summarized.A four level scoring model and scoring criteria were constructed for head injuries caused by adjustable wrenches.From a morphological perspective,it provided a reference for the inference of injury-causing instruments in forensic practice.

To establish an immunochromatographic method for rapid detection of caprine enterovir-us(CEV),the monoclonal antibody against CEV VP1 protein was used as gold-labeled monoclonal antibodies,and the purified rabbit-derived polyclonal antibody of CEV-VP1 and sheep anti-mouse IgG were used as the detection line and quality control line,respectively.The colloidal gold immu-nochromatographic test strips for CEV were prepared according to the principle of double antibody sandwich,evaluated,and applied for clinical specimen detection.The results showed that the meth-od specifically recognized CEV without cross-reaction with bovine enterovirus and bovine viral di-arrhea virus.The minimum detection limit of the method was 102.49 TCID50/mL and had good re-producibility.The prepared test strips had a shelf life of three months kept at 4 ℃.Detection of clin-ical samples using the immunochromatographic test strips showed 100％coincidence rate with RT-PCR method.In conclusion,the colloidal gold immunochromatographic test strips for detection of the emerging CEV with good specificity,sensitivity and repeatability,which provides a new techni-cal means easily used for the rapid detection/diagnosis and epidemiological investigation on CEV infection.

Objective:To explore the effect of dural puncture epidural (DPE) combined with dual tube epidural block in labor analgesia of hypertensive women with pregnancy and its impact on fetal umbilical arteriovenous blood gas.Methods:A total of 120 pregnant women with gestational hypertension who underwent vaginal delivery from February to August 2023 in the Affiliated Hospital of Jining Medical College were prospectively selected and divided into two groups by random number table method, with 60 cases in each group. The observation group was given DPE combined with double epidural block for analgesia, and the control group was given double epidural block for analgesia. Blood pressure level, Digital Pain Rating Scale (NRS) score, analgesia quality and efficiency, anesthesia level, adverse reactions and fetal umbilical arteriovenous blood gas analysis were compared between the two groups before and after injection.Results:The systolic blood pressure and diastolic blood pressure in the two groups were significantly decreased at 15 min, 30 min, 1 h and 2 h after injection, and the systolic blood pressure and diastolic blood pressure in the observation group were lower than those in the control group at the above time points, there were statistical differences ( P<0.05). The NRS scores at 30 min, 1 h and 2 h after injection in the observation group were lower than those in the control group: (3.30 ± 0.25) scores vs. (4.91 ± 0.28) scores, (2.18 ± 0.37) scores vs. (3.25 ± 0.43) scores, (1.76 ± 0.21) scores vs. (2.44 ± 0.22) scores, there were statistical differences ( P<0.05). The time required for T 10 to reach the anesthetic plane in the observation group was shorter than that in the control group: (9.10 ± 1.35) min vs. (13.25 ± 1.64) min, there was statistical difference ( P<0.05). The dosage of analgesic drugs (sufentanil), the proportion of the highest sensory anesthesia plane to T 6, and the proportion of the lowest sensory anesthesia plane to S 4 between the two groups had no statistical differences ( P>0.05). The onset time of analgesia in the observation group was shorter than that in the control group: (12.34 ± 3.45) min vs. (17.13 ± 3.57) min, and the number of relief analgesia was lower than that in the control group: (1.74 ± 0.32) times vs. (2.09 ± 0.45) times, there were statistical differences ( P<0.05). The incidence of adverse reactions between the two groups had no statistical differences ( P>0.05). The pH value, partial pressure of arterial oxygen, partial pressure of arterial carbon dioxide and residual alkali between the two groups had no statistical differences ( P>0.05). Conclusions:DPE combined with double tube epidural block has a significant effect on labor analgesia in pregnant women with hypertension, which can effectively improve the efficiency and quality of analgesia, relieve maternal pain. In addition, the combined therapy has little impact on the stablity of blood pressure, and fetal umbilical arteriovenous blood gas, which hardly generate adverse events and deserved for clinical promotion.

This study collected data on 9 cases of fatal head injuries caused by adjustable wrenches and analyzed 16 types of injury characteristics of head injuries caused by adjustable wrenches.The distinctive patterns of head injuries caused by adjustable wrenches were summarized.A four level scoring model and scoring criteria were constructed for head injuries caused by adjustable wrenches.From a morphological perspective,it provided a reference for the inference of injury-causing instruments in forensic practice.

Objective:To discusses the variations of 7Be, 137Cs and 210Pb activity concentrations in the air in Beijing from March 16, 2021 to March 31, 2023, and their correlation with temperature, precipitation, relative humidity, barometric pressure, PM10 (only limited to 137Cs) and other meteorological parameters. Methods:A total of 60 aerosol samples were collected using the HRHA01-SFS1000/A ultra-large flowair sampler in the automatic radiation monitoring station. The activity concentrations of 7Be, 137Cs and 210Pb in the aerosol samples were measured by GMX-60 low background anti-Compton high purity germanium gamma spectrometer. Pearson correlation coefficient was used to show the correlation of the relevant parameters. Results:The seasonal mean values of 7Be activity concentration were spring 4.31 mBq/m 3, summer 3.53 mBq/m 3, autumn 3.09 mBq/m 3 and winter 2.45 mBq/m 3, respectively, ranging from 1.17 to 7.79 mBq/m 3, with the overall mean of (3.36±1.33) mBq/m 3. The activity concentration of 137Cs ranged from 0.39 to 8.49 μBq/m 3, with an average of (0.59±1.47) μBq/m 3. The average activity concentrations of 210Pb were spring 0.53 mBq/m 3, summer 0.44 mBq/m 3, autumn 0.72 mBq/m 3 and winter 0.75 mBq/m 3, respectively, ranging from 0.21 to 1.36 mBq/m 3, with an average of (0.56±0.26) mBq/m 3. The activity concentration of 7Be was correlated with temperature and pressure ( r=0.38, -0.40), the activity concentration of 137Cs was correlated with precipitation ( r=-0.41), and the activity concentration of 210Pb was correlated with temperature and pressure ( r=-0.31, 0.37). The variation of 137Cs activity concentration in the air showed an obvious seasonal pattern, and the peak value generally appears in spring of each year (March to May), which was related to the frequent spring dust in Beijing. The activity concentration of 210Pb in the air was affected by coal combustion heating in winter, and has a peak value during November to March. Conclusions:The activity concentrations of 7Be, 137Cs and 210Pb in the air in Beijing are within the normal range, showing a seasonal trend.